Density and Compositions of Fenced Populations of Leopard Lizards (Crotaphytus wislizenii) in Southern Nevada
Turner FB, Lannom JR, Medica PA, Hoddenback GA. 1969. Density and Compositions of Fenced Populations of Leopard Lizards (Crotaphytus wislizenii) in Southern Nevada. Herpetologica. 25(4):247-257
Leopard lizards exist in Rock Valley, Nevada, at low densities (1-2/acre) sustained by good adult suvival (roughly 50% per annum) and maximal life-span of at leats 7-8 years. Among individuals more than 8 months of age, male survivorship appears to be superior to that of females. Thus, although the sex ratio among hatchlings is about even, there appear to be more adult males than females in our areas. Biomass estimates over a period of 5 years in three 20-acre areas ranged from 17.6 g/acre to 47.8 g/acre. Females do not ordinarily reproduce until 21-23 months of age, but in 1966 a few females reproduced when 9-11 months old. One clutch of eggs per year is typical, but occasionally two clutches may be laid (1965), and in 1964 there was no reproduction.
- Type
- Journal Article
- Authors
- Turner, Frederick; Lannom, Joseph; Medica, Philip; Hoddenback, Gerard
- Units
- MOJA , ORPI
- Keywords
- Absence (Biodiversity), Abundance (Biodiversity), adult survival, biomass estimates, Distribution (Biodiversity), life-span, Lizards, male survivorship, Nevada, Observations, Presence (Biodiversity), Rock Valley, Sceloporus Olivaceus, Taxa Links To References, Uta stanburiana